Keys:

 

Display:

Description:

{G



 

Selects Equation mode.

KX 02 ™ 

 

Enters the equation.

KX „6 š%:-%. 

{

/ 

)Checksum and length.

†



Cancels Equation mode.

Now, solve the equation to find its positive and negative roots:

Keys:Display:Description:

0 HX 10



Your initial guesses for the

 

_

 

 

 

positive root.

{G

%:-%. 

Selects Equation mode;

 

 

displays the equation.

{œX

#

Calculates the positive root

 

%/)

using guesses 0 an 10.

9

)

Final two estimates are they

 

 

same.
9{ )f(x) = 0.
0 HX 10 _ . 

Your initial guesses for the

 

_

 

 

 

negative root.

{G

%:-%. 

Redisplays the equation.

{œX

#

Calculates negative root

 

%/.)

using guesses 0 and –10.
99{)f(x) = 0.Certain cases require special consideration:

If the function's graph has a discontinuity that crosses the x–axis, then the SOLVE operation returns a value adjacent to the discontinuity (see figure a, below). In this case, f(x) may be: relatively large.

Values of f(x) may be approaching infinity at the location where the graph changes sign (see figure b, below). This situation is called a pole. Since the SOLVE operation determines that there is a sign change

More about Solving C–5

File name 32sii-Manual-E-0424

 

Printed Date : 2003/4/24

Size : 17.7 x 25.2 cm